Convergent synthesis of potent peptide inhibitors of the Grb2-SH2 domain by palladium catalyzed coupling of a terminal alkyne
摘要:
A new strategy was developed to prepare in a very efficient and convergent manner C-terminal modified tripeptides with high affinities for the Grb2-SH2 domain. Using Pd(PPh3)(2)Cl-2 as catalyst, selected naphthyl iodides and triflates were coupled to Ac-Pmp(t-Bu)(2)-Ac(6)c-Asn-NH(prop-2-ynyl). The resulting alkyne derivatives were hydrogenated and deprotected to afford potent Grb2-SH2 inhibitors. (C) 2001 Elsevier Science Ltd. All rights reserved.
概述了手性蒽醌二聚体的第一次不对称合成的发展,从而导致了 ( S )-双茚二醇的第一次全合成。不是仿生二聚化逆合成断开,而是在形成轴向手性联萘骨架后生成蒽环系统。这种合成策略使几种类似物的合成成为可能。合成的主要功能包括的对映选择性耦合受阻含有替代2-萘酚迫到的C-C键形成的部位,8,8'-羟基化binaphthols到binaphtho-区域选择性氧化段-quinones,和串联区域选择性Diels-Alder/芳构化反应。
Diaryldiamines with Dual Inhibition of the Histamine H<sub>3</sub> Receptor and the Norepinephrine Transporter and the Efficacy of 4-(3-(Methylamino)-1-phenylpropyl)-6-(2-(pyrrolidin-1-yl)ethoxy)naphthalen-1-ol in Pain
作者:Robert J. Altenbach、Lawrence A. Black、Marina I. Strakhova、Arlene M. Manelli、Tracy L. Carr、Kennan C. Marsh、Jill M. Wetter、Erica J. Wensink、Gin C. Hsieh、Prisca Honore、Tiffany Runyan Garrison、Jorge D. Brioni、Marlon D. Cowart
DOI:10.1021/jm100666w
日期:2010.11.11
A series of compounds was designed as dual inhibitors of the H-3 receptor and the norepinephrine transporter. Compound 5 (rNET K-i = 14 nM; rH(3)R K-i = 37 nM) was found to be efficacious in a rat model of osteoarthritic pain.